<?php

$a = 'hello';
$b = 'world';
$c = 'php';

echo $v1 = 'This is '.$a.' and '.$b.' in '.$c;//slow

echo "\n\n";

echo $v2 = 'This is ',$a,' and ',$b,' in ',$c;//fast

echo "\n\n";

var_dump($v1);
var_dump($v2);
